*{
    padding: 0;
    margin: 0;
}
a{
    text-decoration: none;
}
ul{
    list-style: none;
}
input,button{
    outline: none;
}
/* *******header****** */
.header{
    height: 40px;
    background-color: rgb(86, 245, 192);
    /* width: 100%; */
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: 99999;
}
.header h2{
    width: 100%;
    text-align: center;
    font-size: 1.7em;
    height: 28px;
    line-height: 28px;
    padding: 4px;
    margin: 0;
}
.container{
    padding: 0;
}
.backBtn{
  width: 20px;
  height: 20px;
  position: absolute;
  left: 10px;
  top: 10px;
}
.main{
    margin-top: 60px;
}
@media (max-width:767px) {
    .header h2{
        font-size: 1.6em;
        padding: 6px;
    }
}